EDB (Every Day Belt)
The every day belt is a one size fits most. It comes with 52 inches of usable space that means that as longs as you have less than a 52 inch waist it will fit. don't worry about excess, it is a trim to fit belt.
LWP (Light Weight Pant)
If you are wanting exact measurements measure your self at the fallowing locations using a soft tape measure.
A. Flat around the waist 2 inches below your navel while relaxed.
B. Measure around the hips 6.5 inches below waistline
C. Measure from around thigh at the point of groin
D. Measure from Groin to the point you want the pants to end.
Then find the the correct size for you using the chart bellow.